84 Miss Kathleen Huddoii on 



no process on tlie abdominal part of the scutum ; for further 

 characters of this species, see the original description. I am 

 inclined to think that Acudorsum is a synonym of Ilinzuaniw^. 



EXPLANATION OF TLATE T. 



Fif/. 1. Zalmoxis austerus, sp. n. Outer view of palp. 



Fi(/. 1 n. Ditto. Fourth leg of male, outer view. 



Fig. 2. Vima insignis, gen. et sp. n. Palp, outer view. 



Fig. 3. Ibalonius qnadriguttatus, sp. n. Ohelicera, outer view. 



Fig.Sa. Ditto. Palp, inner view. 



Fig. 4. Podoctis taprobamciis,ST^.n. Anterior end of body and proximal 



part of first leg, from the side. 

 Fig. 5. Pododis willegi, sp. n. Chelicera of male, outer view. 

 F/'g. 5ff. Ditto. Trochanter and femur of first leg, from the side. 

 Fig. 6. Barnmia vorax, gen. et sp. n. Palp and anterior end of lx)dy, 



from the side. 

 Fig.Gn. Ditto. Chelicera, outer view. 



Fig. 6 b. Ditto. Trochanter and femur of first leg, from the side. 

 Fi'q. 7. Fpedanus orientalis, s]). n. Chelicera of male, outer view. 

 Fig. 7 a. Ditto. Palp, outer view. 



Fig. 8. Epedamis siamensis, sp. n. Chelicera of male, outer view. 

 Fig. 9. Parabiantes longipalpis, gen. et sp. n. Anterior view of ocular 



tubercle. 

 Fig. 9 a. Ditto. Palp, outer view. 



VII r. — HersUia (Clausidium) vancouverensis. 

 By Kathleen Haddon. 



[Plate II.] 



HersUia (Clausidium) vancouverensis, sp. n. 



In the summer of 1911 Mr. F. A. Potts, of Trinity Hall, 

 Cambridge, collected a large number of specimens of 

 Callianassa pugettensis from a stretch of sandy beach at 

 Hammond Bay, near Nanaimo, Vancouver Island. A small 

 copepod occurred in vast numbers in the gill-chambers and 

 also all over the body of many of the Callianassce, conspicuous 

 on account of the bright red colour of the egg-sacs. They 

 alternated between a state of quiescence, during which they 

 were attached to the surface of the host, and rapid jerky 

 movements, made when disturbed. The tiny male was 

 attached to the tail of the female in almost every case. 



On liis retuin home jNIr. Potts gave me the copepod for 

 identification, and I found that it belonged to the genus 

 Her sill a. 



